(CBS/AP) OVERLAND PARK, Kan. - Police in Kansas say they are no closer to learning what happened to Aisha Khan, a 19-year-old student who disappeared on Friday.

Khan, who was born in New York and got married in July, called her sister Friday from the campus of the University of Kansas- Edwards and left a voicemail saying she was running away from a drunken stranger with whom she'd just had a physical altercation. Khan said he had harassed her and she slapped him.

At a press conference Monday, Overland Park Police Chief John Douglass said that on the voicemail message Khan left, "You hear her say he may have tried to kiss her or something like that, and she hit him and ran away," reported the Kansas City Star.

The newspaper also reports that when Khan's sister got to campus to pick her up she found her book bag and cell phone unattended. Khan's family has reportedly offered a $10,000 reward for information leading to her whereabouts.

According to CBS affiliate KCTV, police are treating the case as an abduction and investigators have searched nearby and canvassed nearly every house within a mile of the campus.

Police have also said they do not suspect that her husband is involved in her disappearance. According to the Kansas City Star, the couple was planning a honeymoon after Khan finished finals.

Anyone with information is asked to call the TIPS Hotline at 816-474-TIPS (874-474-8477).